Electrical signaling apparatus.



F. E. SUMNEEHS.

ELECTRICAL SIGNALING APPARATUS.

APPucATloN man FEB. s2. 19:7.v

1,265,698. Patented May 7,1918.

'45 A l i disposed therein.

ren STATES.;

` A .further object of this invention is the provision,of adevice of this character in ,which .therdiaphragm -is under lthe control vofoppositely disposedpermanent magnets lofthe horse-shoe t'ype while each pole of f thelrespective magnets vhas connected theretolse as tointluence the same a coil, all of :saidcoils being in circuit and adapted to ef effectedv by la source of alternating or ,vibrating current so as to lproduce in the Adiaphragm a vibration.

,A still further object of this invention is v,diapli'ragni so that .the diaphragm may be Atuned,atwill. i y f With the foregoing and other objects in viewfandwhieh will appear asthe vdescription Aproceeds, the invention resides in the noiielarrangement andcombination of parts hereinafter-.set forth and claimed, it being pos'. rble to malte many changes in the prec e .embodiment without departing from the spli'it'ofthe invention.

In lthe accompanying drawings:

l Fignrel isa longitudinal ysectional, view y vthrough the horn and its casing having the present `diaphragm effecting arrangement Fig 2 is a front-view of the diaphragm and oneof the .magnet supports thev magnet also vbeing shojwirin. elevation.

Referring to the drawings, the numeral 5 designates van attaching plate by meansvof which the present device may be connected to any desired structure as an automobile,r motor car or locomotive, there being connected thereto the oppositely disposed arms 6 and 7 which support respectively the rear l specification f Letters Patent.

',telegraphic receivenor-as a signaling horn K,for vehicles, such for instance as motor cars for locomotives.

Athfeprovision of an adjustabler tuning means 5, nfor one ofthe armatures connected to the enseignent/nanas, or nnnrnisnisscom. r

` f ELEcTnrcniLv SIGNANG' APPARATUS. Y

. Patented iviay 7,' 191s.

member 8 and the amplifying member 9 of the present horn;

Mountedso that its periphery is properly clamped between these members is a diaphragm'lO which as shown in Fig. 2 is provided with openings 11 therethrough so thatl as will presently appear, the soundwaves generated upon the side opposite the member 8 may have passage therethroughto the amplifying member 9.

Attached to opposite sides of the' diaphragm concentric thereof are the two l blocks 12 and 13 to which are connected the screws 1l and 15 for attaching the armatures 16 and 17 to the diaphragm, the purpose of which will'presently appear. The armature 17-is extended so as to be fulcrumed at ,17

between the members 8- and 9 having the resilient extension 18 which forms a tuning device or rod having mounted thereon the adjustable weight 19 throughthe instrumentality of the screw 20.

Mounted between the members 8 and 9 upon the side of the diaphragm adjacent to the member 9 vis a support 21 for the permanent horse-shoe magnet 22 whose poles are disposed in attractive relation to the armatures 16 while connected by screws 23 to the member S'is the permanent horse-shoe magnet 24 whose poles are supported in a support 25 which is similar to the support 21, but which may be dispensed with if so desired as the screws 23 may be ample in supporting the magnet 24. Thus the poles of the magnet 24 are disposed in attractive relation to the armature 17.

rlhe conductors 26 are.. adapted to be con-- nected to aseries of alternating or vibrating current and are so constructed and arranged as to ,connect the coils 27, 28, 29' and 30 in series so that when the current is'lliowing through the conductor 26 and consequently these. coils, a vibration is set up through the .armature 16 and 17 to the diaphragm 10 so that sound is generated. v

With thisconstruction of audible signal device,4 the magnets 22 and 211AVV and the other parts being practically in 'fixed relation to each other, it is simply necessary to adjust the weight 19 of the resilient rod 18 and thus tune the diaphragm as desired.

From the foregoing description. it is evident that an exceedingly simple and eiicient audible electric signaling device is provided, the same being so constructed and arranged as to be readily attached for use upon alito-l mobiles and locomotives'- for giving an audible alarm `or to be connected for .telephonic or telegraphic,purpo'ses1 it .being a loud talk- I ing amplifying device'so that'telephonicor telegraphic `signals maybe received without the necessity of placingthe deviceto the ear.

Although'the coils' in the presentinstance have been' shown connected infA seriesiit-"is lpossible Vto comicct', themlin'rmultipleL-'or bridging them as may be desiredi; @4g-:-

It is' also possible to'dispensejwith tine ofi;

" the horse-Shoemagnets and use thjonewin the rear of the diaphragmwhile it is also possible to dispense with the armatures which are connected to the diaphragm so that oneor'more of the horse-shoe magnets -infiuence directly'the diaphragm. In thi-s casetlie magnetic circuit is directed 'through l. ;l the diaphragm,

What Iclaim'as new is: s

1. A signaling device including a support,l

a diaphragm mounted therein, two armatures connected to-'opposite sides of the "da E p hragm, two permanent magnets mounted upon opposite members to the diaphragm-in' attractlve relation to the armatures, and a plurality o'f connected coils disposed upon vthe poles ofv the-permanent magnets, one of .the armatures'beingextended and having ai fulcijumed resilient tuningvterminal.

' 2.-'7'A signaling device`-including a'support, a diaphragm mounted therein,=two'armatures i' connected to opposite sidesl of the ,dia-

armatures beingv extended'and having afulphragm, two permanent magnets mountedupon opposite members to the diaphragm in attractive relation tothe armature, a plurality of connected coils disposed upon the poles of the permanent magnets, one of the crumed resilient tuning terminal; and an adJustablemeans upon 4said( terminal for adjusting the timing effect thereof.

3. An electricsi'gnaling :device incllyiling; a two-part casing having anopen amplify-i ing member, a perforated diaphragm dis; posed between said members, two armatures connected upon opposite sides of'a'n'd-itfo the diaphragm, two 'double poled permanent -magnets mounted upon opposite sides.L of

the diaphragm and nfattractive relation to the respective armatures,- a plurality of electrically connected coils mountednpon the poles of said permanent magnets, and a rel silient fulcrumed tuning terminal having one of said armatures disposed exteriorly of the casing.

4. An electric signaling device including 'two member casing one of which is anampli-l r fying horn, ardiaphragm having its peripheryV supported between said members and" `715, said diaphragm being provided with per` forations, two armatures one upon each side y `of the diaphragm connected to the center of the diaphragm, two horse-shoe magnets disposed to have their Ipoles in attractive rela- 80 tion to the respective armatures, one of the` magnets being supported in one member ofthe casing, a support for the other member having its terminals connected between the diaphragm and the amplifying membeiga plurrality of electrically connected coils mounted upon the poles of said magnets, and. a resilient fulcrum terminal 'for one of the arma? tures pro] ecting exteriorly of the casing, and

forming a tuning device for the diaphragm. A

6. An electric signal'devi'ce includinga two member casing one of which is an ampli'- fying horn, a diaphragm having its periph. ery supported between said-members and said diaphragm being provided with per- -.`f0rations',- two armatures one' upon each sidel of the diaphragm connected to the cent-er of the diaphragm, two horse-shoe magnets disposed to have their poles in attractive relation to the respective armatures, one o- 11N? the magnets ybeingsupported in one member of the casing, a support'ffor the other member having its terminalsconnected between the diaphragm and the amplifying member, l 'a 'plurality of' electrically connected coils 105 mounted upon the poles of saidmagnets, a resilient fulcrumed terminal forV one of.- the armatures projecting exteriorly of the casing, and forming a tuning device for` the diaphragm, andan adjustable weight mounted upon said terminal.l`

'In testimony whereQfI alii; my slgnature.

' FRKl E. SUMMERS. 

